我想把一些代码打包成组件到处使用，大概是这样的：

m1.js

define([     "backbone" ], function (         backbone         ) {     return Backbone.View.extend({         render: function () {             var This = this;             this.$el.html(this.template(this.model.attributes));             return this;         }     }); });

m2.js

define([     "backbone","m1" ], function (         backbone,m1         ) {     return Backbone.View.extend({         render: function () {             var This = this;             this.$el.html(new m1().render().$el);             return this;         }     }); });

然后把我这两个文件打成一个包，pack.js，我希望在别的文件中调用它，比如：

m3.js

define([     "backbone","pack" ], function (         backbone,pack         ) {     return Backbone.View.extend({         render: function () {             var This = this;             this.$el.html(new pack().render().$el);             return this;         }     }); });

结果发现pack没有加载成功，是空对象，请问有办法解决吗？